"I am almost certain that FN commercial actions were all H ring, not C ring as made by Zastava"

I once owned an early post-war Husqvarna 30-06 on an obvious FN Mauser 98 that was a C-ring. I owned numerous of these and all the others were milled on both sides.

Anyway, glad for the info. and I believe you are correct about it being an intermediate length action by Zastava, opened up for the 7x64. It seems that it will be harder to find a bolt than I first imagined and I will now likely just part out the rifle rather than attempting a restoration.